Delivery Loop: task_b5fcb1759d38b0a61c463daf8b05c1a3981e1fc4e5d1fbaee1f8959b

[delivery-loop-evilstar-0728]

Delivery Loop Draft PR

Generated from durable Task, Plan, Git head, and verified Evidence snapshots.

Source task

• Task: manual/delivery-loop-owner/phase7-main-chain-requirement-20260807
• Revision: 1
• Title: Add strict SHA-256 digest validation helper
• Repository: evilstar9527/delivery-loop
• Plan: plan_1681e19208e38039dbd612b62f411152204a80f79604e2c72d909c89 v1 (sha256:4140335c1699635755dde538740374f97dceb34ae325014bac1e31d3a31e67a0)

Change summary

• Objective: Add and verify a narrowly scoped exported SHA-256 digest-format validator and focused unit coverage.
• Head: 00a1d3e1e4a3d583ed3de7c09c28ba4a08c96817 on agent/task_b5fcb1759d38b0a61c463daf8b05c1a3981e1fc4e5d1fbaee1f8959b/attempt_item_c76bfccee0fcaa2b6acc69f1585461ffe18de363
• Completed add-strict-digest-validator: Implement and test strict SHA-256 digest validation

Acceptance criteria

• AC 1: The helper accepts sha256: followed by exactly 64 lowercase hexadecimal characters. — passed
  • Evidence: evidence_commit_481d673cd879d63c77d07c209156cde969273d4a56836683f49ed198, evidence_verification_0ed02d45b04a73ececd34c850031904404b57170, evidence_verification_a2ac1e35a45083d47e8ddc140e2cca1748810868
• AC 2: The helper rejects uppercase hexadecimal characters, wrong prefixes, and digests with the wrong length. — passed
  • Evidence: evidence_commit_481d673cd879d63c77d07c209156cde969273d4a56836683f49ed198, evidence_verification_0ed02d45b04a73ececd34c850031904404b57170, evidence_verification_a2ac1e35a45083d47e8ddc140e2cca1748810868
• AC 3: Focused unit tests and the repository required verification pass. — passed
  • Evidence: evidence_commit_481d673cd879d63c77d07c209156cde969273d4a56836683f49ed198, evidence_verification_0ed02d45b04a73ececd34c850031904404b57170, evidence_verification_a2ac1e35a45083d47e8ddc140e2cca1748810868

Risks

• Review the exact repository diff and required checks before merge.
• Repository write changes application behavior; merge remains human-controlled.

Test evidence

• test:unit — exit 0, 35834 ms, head 00a1d3e1e4a3d583ed3de7c09c28ba4a08c96817, Evidence evidence_verification_a2ac1e35a45083d47e8ddc140e2cca1748810868
• verify:all — exit 0, 281057 ms, head 00a1d3e1e4a3d583ed3de7c09c28ba4a08c96817, Evidence evidence_verification_0ed02d45b04a73ececd34c850031904404b57170

Unfinished items

• None.

Rollback

• Revert bot commit 00a1d3e; no deployment is part of this Draft PR.